Value of 3v-7 given that 5v +9=4
2 answers:
Answer:
The solution is -10
Step-by-step explanation:
We first solve for v in the equation;
5v + 9 = 4
5v = 4 - 9
5v = -5
v = -1
Finally, we substitute v = -1 in the given expression;
3v - 7
3(-1) - 7 = -10
Answer:
-10 is the answer.
Step-by-step explanation:
We have given equation:
5v +9=4
We have to find the value of 3v-7.
To find the value of v we use the given equation.
5v +9=4
5v = 4-9
5v = -5
v = -1
Putting v = -1 in the equation 3v-7 to get the required answer.
3v-7 = 3(-1)-7
3v-7 = -3-7
3v-7 = -10 is the solution.
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<u>Width = 7 inches </u>
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(2x + 9)(x) = 161 2x² + 9x = 161 2x² + 9x - 161 = 0 2x² - 14x + 23x - 161 = 0 2x(x - 7) + 23(x - 7) = 0 x - 7 = 0 x = 7
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